How to change registered owner`s name on Windown XP: 1. Run regedit 2. Find and go to below key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version 3. Change your name and organization  in following subkeys: – RegisteredOwner – RegisteredOrganization URL: http://www.astahost.com/info.php/Change-Registered-Owners-Win-Xp_t2311.html